Final answer:
Dry cocoa can be an ingredient in various cosmetics, such as skincare or makeup, but cannot be definitively categorized without context. The FDA regulates these products, and cocoa's form and use in a product determines its classification.
Step-by-step explanation:
In the context of the Food and Drug Administration (FDA) regulation, dry cocoa can be classified as a cosmetic ingredient when it is intended for application on the human body to beautify, promote attractiveness, or alter the appearance. Therefore, dry cocoa could be incorporated into products that fall under various cosmetic classifications, such as skincare, haircare, makeup, or bodycare. However, without a specific product context, it isn't easy to definitively categorize dry cocoa as one particular type of cosmetic. For instance, cocoa butter, derived from dry cocoa, is widely used in skincare to moisturize and soften the skin. Yet, powdered cocoa could be used in color cosmetics, which falls under makeup.